quantum size effects[¦kwänt·əm ′sīz i‚feks] (solid-state physics) Unusual properties of extremely small crystals that arise from confinement of electrons to small regions of space in one, two, or three dimensions.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, ...
The results of theoretical and experimental investigations of the quantum size effect in thin films are presented. The locations of the extrema of the size sub-bands and of the Tamm surface states are calculated as functions of the film thickness. A new length R is introduced which characterizes...
We have studied the quantum Hall effect in restricted dimensions and observed striking changes in its characteristic features.doi:10.1016/0039-6028(86)90963-5H.Z. ZhengElsevier B.V.Surface ScienceZheng, H.Z., Choi, K.K., Tsui, D.C., Weimann, G.: Surf. Sci. 170 (1986) 209.Z1. ...
I. Quantum Size Effects in the Optical Properties of Small Metallic Particles. I. Hartree-Fock Variational Treatment of Structural Properties of Molecular and Metallic Hydrogen at High Pressures In Part I classical light absorption by a dilute, random collection of metallic spheres small in comparison...
A method is presented to obtain a simplified dielectric function for thin films, incorporating quantum-size effects for electron-hole pairs excitations. By a proper generalisation to spheres, we analyse the photoabsorption of these systems. Our results show interesting quantum-size effects associated wi...
Full size image Another nonclassical property that we examine in this section is the signal-to-quantum noise ratio which the x-component of it in an arbitrary normalized state is defined by $$\begin{aligned} \sigma ^{(x)}=\frac{{\langle x\rangle }^2}{{\langle x^2\rangle }-{\langle...
Atomistic simulations of chemical, biological and materials systems have become increasingly precise and predictive owing to the development of accurate and efficient techniques that describe the quantum mechanical behaviour of electrons. Nevertheless, t
As the field further expands, the various quantum (whorls) begin to separate and the interaction with its neighbors becomes less distinct. Each quantum continues to have the same energy but its neighbors contribute less and less to its effect when exposed to a detector, unless lenses or antennas...
It is well known that the topological phenomena with fractional excitations, the fractional quantum Hall effect, will emerge when electrons move in Landau levels. Here we show the theoretical discovery of the fractional quantum Hall effect in the absence of Landau levels in an interacting fermion mo...
Here we analyze the size-shape stability among different triangular structures-quantum- dots proposed from the ideal S(-1010) and Mo(10-10) terminations. Our stability analysis evidenced that the S–Se termination is more stable than Mo; moreover, as the size of the quantum dot increases, ...